On Nov 4, 2005, at 3:48 PM, Ralf R. Radermacher wrote:
The 21 mm Biogon I've mentioned elsewhere in this thread sits with its
rear element a mere millimeter away from the film. Godfrey was
speaking
of the 15 mm Heliar which must be similar.
The Heliar is an inverted telephoto design, but not a radical one
being designed for a thin rangefinder body with no mirror in the way.
It sits about as close to the film as the Biogon 21 .. I had both
once upon a time. The Contax Hologon 16 lens sits so close to the
Contax G cameras' shutter blinds that the camera is programmed to
only use the external light meter sensor when it was fitted, TTL
light metering is disabled completely. It shows extreme format growth.
Godfrey
